Home / 172,347.37-258,381.60-77,508.10

Finding the Fourth Proportional to 172,347.37, 258,381.60 and 77,508.10

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Solution

The fourth proportional to 172,347.37, 258,381.60 and 77,508.10 is: 116,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.37 : 258,381.60 = 77,508.10 : x
  2. Step 2: Convert to fraction form
    172,347.37/258,381.60 = 77,508.10/x
  3. Step 3: Cross multiply
    172,347.37x = 258,381.60 × 77,508.10
  4. Step 4: Simplify right side
    172,347.37x = 20,026,666,890.96
  5. Step 5: Solve for x
    x = 20,026,666,890.96/172,347.37
  6. Step 6: Final answer
    x = 116,199.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.